In this study, we measured pulmonary regurgitation fraction and three-directional myocardial wall motion velocities to establish indices for characterizing cardiac function in patients with repaired tetralogy of Fallot (rTOF). We aim to reveal the interaction of pulmonary regurgitation fraction and myocardial motion velocity and thereby to speculate the myocardial damage in rTOF patients. In conclusion, the pulmonary RF displayed negative correlation with Vz and positive correlation with Vr in the right ventricle of rTOF patients. The analyses of pulmonary flow and myocardial motion velocity can help to comprehend the interaction between pulmonary regurgitation flow and impaired myocardium in rTOF patients.

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